Sliding window structure



Jan. 5,1954 R H, sMlTH SLIDING WINDOW STRUCTURE s sheets-sheet 1 FiledDec. 16, 1948 rllllll/IIA rraeA/Ey R. H. SMITH 2,664,600

3 Sheets-Sheet 2 Jan. 5, 1954 SLIDING WINDOW STRUCTURE Filed Dee. 16,1948 Jan. 5, 1954 R. H; SMITH 2,664,600

SLIDING WINDOW STRUCTURE Filed Dec. 16, 1948 3 Sheets-Sheet 3 thevertical side pieces I and 8 rigidly connected in any suitable manner atthe top and bottom respectively by the top piece 3 and bottom piece i0.The rectangular frame thus formed fits closely within the stationaryframe i and is rotatable therein to a limited extent on verticallydisposed pivots. One of these pivots consists of the upper pintle IImounted in the top piece S of the sash-holding frame and rotative in thetop member 3 of the stationary frame I. The lower pivot consists of thepintle I2 mounted in the lower piece I9 of the sash-holding frame androtatively mounted in the lower member 2 of the stationary frame I.Through this pivotal arrangement of the inner or sash-holding framewithin the outer or stationary frame it will be apparent that the frame6 will be pivotally mounted within the frame I as shown in Fig. 6.

It will be noted that the vertical side member 4 of the stationary frameI is provided at its forward end with a flange I3, while asimilarlyshaped flange, indicated at I4 is provided at the rear of thevertical member 5 of the stationary frame. The inner sides of these twoanges form shoulders which serve as abutments or stops for ribsindicated respectively at I5 and I5 and located on the opposite edges ofthe sash-holding frame 6, to not only limit the rotative movement of theframe 6 within the frame I, but also provide a weather-tight jointbetween the two frames at these points. Provided at the forward end ofthe frame side member 5 is an angular flange I1, while asimilarly-shaped flange, indicated at I8 is provided at the rear end oithe member 4 of the frame I. These flanges I1 and I8 form shoulderswhich serve as stops for the projecting ribs I9 and 20 provided at theedges of the frame 6 as clearly seen in Figs. 5 and 6. The arrangementabove described is such that when the frame 6 is in its nested positionwithin the stationary frame I, the rib 20 will be in abutment with theflange Il; the rib I5 will abut against the inner side of the flange I3;the rib I6 will abut against the flange I4 and the rib I9 will be inabutment with the ange I3. The arrangement and shapes of the severalribs and the flanges against which the same abut are such that arotative movement of the frame 6 in one direction is permitted throughan arc of approximately 1'10 degrees, or until the rib 20 comes intocontact with the outer surface of the ange I3. When the sash-holdingframe 6 is in its nested position, or that in which it is surrounded bythe stationary frame i, it is locked in that position by means of thethreaded locking pin 2| which extends through the frame member 1 and isreceived in the internallythreaded boss 22 provided in the vertical sidemember 5 of the stationary frame I. When the sash-holding frame islocated in the above position, a seal between its lower member I@ andthe lower member 2 of the stationary frame I will be effected by meansof springy weather-strips 23 entering grooves 24 provided in the upperface of the lower frame member 2. Each of said weather-strips 23consists of an elongated section of substantially V-shaped spring metalwhich has one longitudinal edge fixed in a recess 25 in the lower faceof the frame member I0, and its other edge free to permit expansion orflattening of the strip Within said recess. When the frame 6 is moved toits nested position, these resilient strips 23 will enter with a snapengagement into the recesses or grooves 24 and act as a seal between thelower frame elements I0 and 2.

4 The weather-strip construction just described is duplicated at the topof the two frames 6 and I and similar reference characters have beenapplied to similar parts or" said structure at the top of the window.

In the embodiment of the invention shown, the resilient weather strips23 are indicated as being located in the grooves 25 carried by thesashholding frame, and the grooves 24 for the reception of these stripsare provided in the stationary frame. This arrangement, may if desired,be reversed. That is to say, the strips 23 can be mounted in thestationary frame I and the grooves 24 for the reception of such stripscan be provided in the movable or sash-holding frame 6. It will also benoted that while these weatherstrips are shown as being provided only atthe top and bottom of the frames, they may be arranged at the sidesalso, or in fact, arranged to extend completely around the frames.

Formed on the inner face of the vertical side member 1 of thesash-holding frame 6 is a pair of guide ribs or sash tracks, thatindicated at 25 constituting the guiding track for the inner lower sash21, while that indicated at 29 constitutes the guiding means for theinner upper sash 23. The top piece of the sash-holding frame 6 isprovided with ribs or tracks corresponding t0 those shown at 2t and 29,these top ribs being respectively indicated at 26a and 29a. Similarly,the bottom member I5 of the frame 6 is formed with the ribs or tracks25h and 29h. For the reception of screens or storm sashes, the verticalframe member 1 is formed with the guiding rib or track 32, receiving thelower screen or storm sash 3I. A similar rib or track 32 guides theupper screen or storm sash 33. Corresponding ribs 30a and 32a are formedon the top member 9 of the sashholding frame 6, while the bottom memberI is formed with the ribs 30D and 32b. The abovedescribed structure willbe clearly noted in Fig. 2.

The guiding ribs or tracks provided for the sashes on the vertical sidemember 8 of the pivoted-sash-holding frame 6 are removable, therebypermitting ready removal of the several sashes or screens. The guidingmeans for the inner sashes 21 and 28 consists of an elongated strip ortrack plate 35 formed with the ribs 26e and 29e. A similar strip ortrack plate 34 receives `the outer screens or storm sashes 3I and 33,said strip or plate being formed with the guiding ribs or tracks 33e and32e, as seen in Fig. 5. These two plates 34 and 35 are separated by aparting strip 35 formed on or attached to the vertical frame side member8, and said parting strip 35 is formed with a dovetail or undercutgroove 31. Locking plates, indicated respectively at 38 and 39, aremounted for slidable movement in the groove 31. The construction ofthese locking plates and associated parts will be noted in Fig. 10.

Each of the locking plates 38 and 39 is formed along one edge with ahalf-dovetail flange 4U iitting in the groove 31, and at its oppositeedge, the plate is formed with a plurality of spaced lugs 4I. When it isdesired to remove the guide strips 34 and 35, and thus permit of theremoval of the several sashes out of the frame 6, these lugs may beregistered with notches or cut-outs 42 provided in a flange 43 on eachof the guide or track plates 34 and 35. To facilitate Vertical slidingmovement of the locking members 38 and 39 in the groove 31,finger-pieces in the form of projections or angle members 44 areprovided on said locking members.

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in the, normar position ofi the parte just described,the lugs 4l.are-engagedibehind the flange IIifatv pointsbetween` the notches orcut-outs 42 inl said. ange. Such.` engagement tends to hold the guidestrips 34. andi 3.5 against the face of the vertical frame member 3 sothat said' guide strips are then, for. alli intents and. purposes,maintained as apart of the frame member 8. When. it. is desired toremove thesashes from the frame, the projections or angle' members. 4'4'are forced'. upwardly to thereby' cause the locking plates' 38 and' 3.3to be raisedf to' an extent required to align the lugs 41; thereon withthe notches 42. in the guide strips 3'4" and 35. This will. then permitthe guidev strips 3'4". and 35` to be moved; laterally or out of` theframe 6 andthe sashes thereupon removed; The r`e-install`ation of,v thesashes, or their initial placement in'. the frame. 6, is done by.reversing the steps jjust described;

While I have herein statedv thatV the locking plates 3'and 39 arerequired to be raised;or elevated' to align the lugs 1H thereon with thenotches d2, it will be apparentthat the parts may be. arranged so that alowering movement, instea'dof' a raising movement, is required to alignthe lugs and notches and permit removal' of the guide'strips or tracks;

The severalv sashesl employed in the window are generallyv of similarconstruction asv far as their frames are concerned, each of the sasheshaving its frame compose-d of light weight extruded' metal and havingits edge provided with a channel 45 closely, but slidably, fitting theribs or traclzs" 26, 29', 30 and 32 which it embraces. The inner sashes25 and 2'! are provided, with the panes 56, while the outer sashes 3ftand 33 maybe; provided with the screening l1 or with glass. panes` ifthe outer sashes are used as'storm sashes; Each of the lower sashes 2LTand 3lv is provided on its lowerA rail with the inwardly eX- tendingflange 48' constituting a lifting means for aid in raising the sashes.Said lower rail of each of these sashes is hollow to providev a tubularpassage 49 in which a pair of slidable-bolt members 50 and 5l arelocated. The bolt member 50 normally has one of its ends projecting outof the end o'f the lower rail of the sash for engag'ement with anylselected one of ya number of notches 52 provided in the rib 26.Similarly, the bolt member i has its end projectingout or"th'e'opp'osite end ofthe lower rail of the sash for engagement with likenotches 52"` formedi iny the rib;l e.. The bolt member 50? isspring-pressed into its projected position by means of the coil springv53- contained within the passage t9A and having; one end bearing againstthe inner end of the bolt. member 5l!` and its opposite end bearingagainst a wall or partition 54 extending across the passage 49 on theinside of the lower vinaillof the sash. The bolt member 5l issimil'arly` spring-pressed' by means of a. coil spring 55, similar tothat shown at 53, 'and having one end bearingl lagainst theA inner endof the bolt. member 5I 'and its opposite end bearing against the wall orpartition member 54.. Each of the bolts 50 and 5i is' provided with afinger-piece 56, attached to the boltA bythe screws 5'! and projectingthrough a slot 58 in the lower rail ofthe sash. It will be clear that bymoving the two `nriger-pieces 56 toward one another, the two boltlmembers 50 and 5| will be drawn inwardly vor toward one another andthus Vfreed from enyfgage'rnentA with thejnotches 52 vwith which they,

the toits areY tuus" here iri their retracted pesci-1- tions, the sashcan bei raised-or lowered and then set in any position desiredg-byfrelease of the boltsy 50 andA 5l, to permit the sameto vengage thenotchesl 52 located at the'pointfA of stoppage of movement ofthe sash.I

The. upper sashes" 2l!M and 33 areoperated in a somewhat similar manner.That is*V to say; the lower rail of` each of these sashes contains' twospring-pressed bolts,V one of' which is'l shown at 60 in Fig. 7. Thesebolts areV pressed outwardly by the springs` (il,` 6,2, to the'extentpermittedl by the. slots 63. The bolts,l when outwardly projected, canengage with'any ofthe' notches y5'2 formed in theA ribs 29v andv3' inthemanner explained with respectto'thejlowersashes. The nger pieces 64,vemployed forl the manipulation of the bolts (itinl th'efupper' sashes,are'Y inthe form' of rods which` extendV downwardlyV from the bottom ofthe lower rails of these sashes and thus do not projectai way] to"Ainterfere withA the movement of thel'ower sashes.

The lock for holding thet'wosashe's 24- and 2'1 or 33l and 3| in closed;position is shown in detail in Fig. 8. It will be thereinnoted that thelower sash of each of these pairs is provided with a sleeve 10, attachedto the lower sash by the plate ll, which sleeve extends through thelower sash, and thus becomes ai' xed part" of the same. Mounted forslidable,Y axialI movement through the sleeve 'IllL i'stheV bolt orlocking pin T2, which normally hasits end' 'l3` protruding out of theend of the sleeve 'Hl' for entry into an aperture i4 providedA in thelower rail of* the upper sash. Thus when the-sashes are in` their closedpositionas in Figs; 1 and 2; thev end por'- tion 13 of the bolt orlock-ing pin 12 will enter the aperture I4 and prevent relativeymovement of the sashes.

The locking pin 12- ishel'd its protruded position by means of a coilspring'1f5iwhich-iits around the reduced-diameter portion T6 of the pin12 and has one endV bearing against a shoulder Il on the pin 'l-2 andits other end bearing against the end` wall'- 1-8 ofthe sleeve 'I0-Secured on the end of theY reduced-diameter part it of the pin 'l2' is aknob-'I'Q-which is adapted for manual engagement to retract the lockingpin or bolt or to`A permitof rotation of the bolt to cause. the same tobe heldin a retracted position. Provided on the-knobv 119 isla pin 80'which, when the bolt is in its protruding4 or locking position as shownin Fig. 8, 'ts With-in a recess 8l formedv in the sleeve 1U andextending substantially parallel to the bore of the sleeve- 10.

When the bolt, or p`in`12 is its locking position, the pin 8! ts withinthe recess 8l. When it is desired to place the. lock its. open orunlocked position. and retain iti inV that position, the knob 'I9 isgrasped. and pulled outwardly. This will retract the locking pinor` boitl2 and draw it out of the apertureA 1d in' the upper sash. When thebolt' is thus drawn out, the pin will be. drawn out of the recess 8l soythat the knob can be then rotated. Rotativo .movement of the knob willthen disalign pin S0 from the recess 8| and when theA parts 80 and 8lare. thus disaligne-d and the knob 13 is released, the end of the pinwill abut against' the. end'. of the sleeve '15. This will preventv thepin or bolt 'I2 from protruding out of the lower sash, so that the upperand lower sashes can be moved freely past one another. A slight rotativemovement applied tothe knob 'I9 will align thepin 810 with -recess 81'andpermit the pin 'to enter the recess and permit the bolt to beadvanced by spring 15 to its protrudingor locking position.

From the foregoing, the structure and operation of the improved windowwill be readily understood. The normal or closed position of the windowis shown in Figs. 1, 2, 3 and 5. At this time it will be noted that theinner or pivotal sash-holding frame 6 is fully nested within the iixedor outer frame and the two frames I and 6 are held against relativemovement by the locking pin 2l threadably engaging the boss 22. Aweathertight joint between the two frames at the vertical sides isassured by the abutting relation of the several flanges I3 to 20inclusive. At the top and bottom of the pivoted frame a tight connectionis assured by the engagement of the resilient weather strips 23 in thegrooves 24. While the parts are in this position, the several sashes maybe readily opened or closed by pressure imposed on the boltfinger-pieces 56 and 64 to retract the bolt members 50, 5I and 60 out oftheir respective notches 52 to allow of sliding movement of the selectedsashes to the desired position, when a release of pressure on the boltiingerpieces will result in the sashes being held in such position byprojection of the several bolt members into the notches located adjacentto such points of sash stoppage.

When it is desired to clean the windows or replace a pane thereof, theframe 6 can be readily pivoted to bring the outer sashes within the roomby partially unthreading the locking pin 2| to free it from engagementwith the boss 22, whereupon a push on the right end of the frame 5, asviewed in Figs. 5 and 6, will result in the frame 6 and sashes carriedthereby swinging outwardly in the direction of the arrow in Fig. 6,through an arc of approximately 1'70 degrees until such swingingmovement is halted by the contact of the rib 28 with the outer face ofthe ange I3 on the fixed frame I.

When the sash-holding frame is in its outwardly pivoted or open positionas above described, it is desirable that the same be retained in suchposition as long as needed while the window is being cleaned or workedupon. A locking means for holding the pivoted frame in such openposition is shown in detail in Fig. 1l. A leaf spring is shown at 85,attached near one of its ends to the under side of the bottom member 2of the stationary frame by a screw 98. Adjacent to the free end of thespring 85 is provided an upwardly-extending stud 86 which projectsthrough an aperture 87 formed in the bottom member 2 of the stationaryframe. The end of the stud 88 rises above the upper surface of the framemember 2 and is normally held in position for snap engagement with arecess 8l formed in the under side of the bottom member I8 of themovable or sash-holding frame E. Said recess 81 is so located that itwill only engage the stud 86 when the movable sash is swung to its fullyopen position and when it so engages the sash, the sash cannot be swunguntil the stud 35 is freed from its engagement with the recess 8l. Thisis done by manual pressure imposed on a button or pin 88 attached to thetop of the spring 85 and extending upwardly through an opening 89provided in the lower member 2 of the stationary frame I. It will beclear that when the frames i and 8 are in their nested position, thebottom member of the movable frame will depress the stud 86 and buttonor pin 88, the resiliency of the spring 85 permitting its deiiectionwhen the lower member I0 rides over the top of the stud 88 and button88. However, when the frame 6 is swung to its fully open position andthe recess 81 is thus so moved as to bring it above the stud 86, it isapparent that the stud will be moved upwardly by the spring 85 to enterthe recess 8l and hold the movable frame E in its open position. Whenthe frame 5 is in such open position the button or pin 88 is renderedaccessible since the frame 6 does not extend over and cover it at thistime. Hence; when it is desired to move the frame 6 to its nestedposition within the stationary frame I, the button or pin 88 can beeasily reached and depressed by the nger to cause the stud 86 to bemoved down and out of the recess 86.

The removal of any of the sashes is also readily done by sliding one orthe other of the locking plates 38 or 39 upwardly to an extent necessaryto bring its lugs 4I into registry with the notches 42 in the guide ortrack strip to be removed, whereupon the guide strip is movablelaterally and out of the frame and the sash thereon readily taken out.Openings in the lower corners of the pivoted frame slanting down fromthe space between the inner and outer sashes to the outside, allowtrapped water to drain out.

The structure of the various parts embodied is such that the same may,if desired, be made of readily extruded light-weight metal, and thewindow is easily assembled, will operate smoothly and may be veryreadily cleaned and repaired when necessary.

While I have described one embodiment of the invention, it is obviousthat the same is not to be restricted thereto, but is broad enough tocover all structures coming within the scope of the annexed claims.

claim:

1. In a window construction, a frame in which a sash is slidablymounted, a track tting the edge of said sash, said track beingdetachable from the frame, the frame having a groove, a locking barslidably held in said groove, said bar having spaced lugs, the trackhaving a flange behind which the lugs project when the bar is in itslocking position relative to the track, and the flange having notcheswith which the lugs may be aligned and through which the lugs can bepassed to thereby disengage the track from its engagement by the lugswhen the bar is moved to its unlocking position by sliding movement inthe groove.

2. In a window construction, a frame in which a sash is slidablymounted, a track located in said frame and tting the edge of the sash,said track being detachable from the frame, said track including anotched ange, a locking bar slidably mounted on the frame and havinglugs overlying the notched iiange, said locking bar being adapted tomaintain the track within the frame while said notches are disalignedfrom the lugs, and permitting the removal of the track from within theframe when the lugs on the locking bar are aligned with the notches inthe flange.

3. ln a window construction, a frame, tracks carried on the inside ofthe frame, sashes carried and longitudinally slidable on said tracks,portions of said tracks being removable from within the frame, lockingplates slidably mounted in the frame and normally overlying portions ofthe removable tracks to retain said portions in iXed relation to saidframe, notches in the removable portions of the tracks, and means on thelocking plates adapted to be aligned with the notches to permit ofdisengagement of the re- 9 movable portions of the tracks from thelocking plates.

4. In a window construction, a frame composed of side members, a topmember and a bottom member, sash-tracks provided on saidmembers of theframe, the tracks disposed along one of the side members being removableand consisting of inner and outer sections, the said side member 'beingformed with an undercut groove between said track sections, a pair oflocking plates having undercut anges located in said groove andpermitting independent sliding movement of the locking plates in saidgroove, each of the lockingr plates having spaced lugs along one of itsedges, each of the track sections having a notched edge behind which thelugs on one of the plates extends, the notches in the edges of the tracksections permitting passage of the lugs through them when the lockingplates are moved relatively to the track sections so that said lugs areopposite said notches.

REGENALD H. SMITH.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 416,198 Wallace Dec. 3, 1889 727,882 Bickel May 12, 1903742,869 Hayes Nov. 3, 1903 1,346,663 McClair July 13, 1920 1,634,425Irving July 5, 1927 1,981,192 Plym et al Nov. 20, 1934 2,107,192 TakachFeb. 1, 1938 2,451,654 Beil Oct. 19, 1948 FOREIGN PATENTS Number CountryDate 327,607 Germany Oct. 14, 1920

